Thomas Roberts ( 1748 - 1778 ) was an Irish painter. Thomas Roberts s works have been put up for auction numerous times, with realized prices varying from 207835.63 USD for An extensive lakeside landscape in 2004 to 355594.45 USD for A WOODED LANDSCAPE IN POWERSCOURT DEMESNE, WITH A BRACE OF FALLOW BUCKS AND A DOE in 2019 , based on the size and medium of the artwork.